The conservative elites tend to live in different places than the liberal elites and they tend to have influence in different ways (consider, for example, decisions about where to build new highways, convention centers, etc., or pick your own examples), and those differences interest me.
Let me try to articulate what's wrong with this statement. It may well be that many if not most liberals and conservatives buy into the notion that development per se is a partisan issue; if so, it reflects badly on both of our inability to perform rational cost-benefit analysis. But I will nonetheless assert that there is nothing especially conservative about development.
But let's stipulate that conservatives are "pro development". I don't want to minimize the impact that development projects have on local communities, and making decisions about "where to build new highways" represents the power to materially impact people's lives, for good and ill. But even if we agree that nominal conservatives make these decisions, I can't see how such decisions are made on behalf of conservatism, or at least any conservatism that I would recognize.